1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portlet.wiki.engines.jspwiki;
24  
25  import com.ecyrd.jspwiki.WikiContext;
26  import com.ecyrd.jspwiki.WikiException;
27  import com.ecyrd.jspwiki.WikiPage;
28  
29  import com.liferay.portal.SystemException;
30  import com.liferay.portal.kernel.log.Log;
31  import com.liferay.portal.kernel.log.LogFactoryUtil;
32  import com.liferay.portal.kernel.util.StringPool;
33  import com.liferay.portal.kernel.util.Validator;
34  import com.liferay.portlet.wiki.PageContentException;
35  import com.liferay.portlet.wiki.engines.WikiEngine;
36  import com.liferay.portlet.wiki.service.WikiPageLocalServiceUtil;
37  
38  import java.io.ByteArrayInputStream;
39  import java.io.IOException;
40  import java.io.InputStream;
41  
42  import java.util.Collection;
43  import java.util.Collections;
44  import java.util.HashMap;
45  import java.util.Map;
46  import java.util.Properties;
47  
48  import javax.portlet.PortletURL;
49  
50  /**
51   * <a href="JSPWikiEngine.java.html"><b><i>View Source</i></b></a>
52   *
53   * @author Jorge Ferrer
54   */
55  public class JSPWikiEngine implements WikiEngine {
56  
57      public String convert(
58              com.liferay.portlet.wiki.model.WikiPage page, PortletURL portletURL)
59          throws PageContentException {
60  
61          try {
62              return convert(page);
63          }
64          catch (WikiException we) {
65              throw new PageContentException(we);
66          }
67      }
68  
69      public Map<String, Boolean> getOutgoingLinks(
70              com.liferay.portlet.wiki.model.WikiPage page)
71          throws PageContentException {
72  
73          if (Validator.isNull(page.getContent())) {
74              return Collections.EMPTY_MAP;
75          }
76  
77          try {
78              LiferayJSPWikiEngine engine = getEngine(page.getNodeId());
79  
80              WikiPage jspWikiPage = LiferayPageProvider.toJSPWikiPage(
81                  page, engine);
82  
83              Collection<String> titles = engine.scanWikiLinks(
84                  jspWikiPage, page.getContent());
85  
86              Map<String, Boolean> links = new HashMap<String, Boolean>();
87  
88              for (String title : titles) {
89                  if (title.startsWith("[[")) {
90                      title = title.substring(2);
91                  }
92                  else if (title.startsWith("[")) {
93                      title = title.substring(1);
94                  }
95  
96                  if (title.endsWith("]]")) {
97                      title = title.substring(title.length() - 2, title.length());
98                  }
99                  else if (title.startsWith("[")) {
100                     title = title.substring(title.length() - 1, title.length());
101                 }
102 
103                 Boolean existsObj = links.get(title);
104 
105                 if (existsObj == null) {
106                     if (WikiPageLocalServiceUtil.getPagesCount(
107                             page.getNodeId(), title, true) > 0) {
108 
109                         existsObj = Boolean.TRUE;
110                     }
111                     else {
112                         existsObj = Boolean.FALSE;
113                     }
114 
115                     links.put(title, existsObj);
116                 }
117             }
118 
119             return links;
120         }
121         catch (SystemException se) {
122             throw new PageContentException(se);
123         }
124         catch (WikiException we) {
125             throw new PageContentException(we);
126         }
127     }
128 
129     public void setInterWikiConfiguration(String interWikiConfiguration) {
130     }
131 
132     public void setMainConfiguration(String mainConfiguration) {
133         setProperties(mainConfiguration);
134     }
135 
136     public boolean validate(long nodeId, String newContent) {
137         return true;
138     }
139 
140     protected String convert(com.liferay.portlet.wiki.model.WikiPage page)
141         throws WikiException {
142 
143         String content = page.getContent();
144 
145         if (Validator.isNull(content)) {
146             return StringPool.BLANK;
147         }
148 
149         com.ecyrd.jspwiki.WikiEngine engine = getEngine(page.getNodeId());
150 
151         WikiPage jspWikiPage = LiferayPageProvider.toJSPWikiPage(page, engine);
152 
153         WikiContext wikiContext = new WikiContext(engine, jspWikiPage);
154 
155         return engine.textToHTML(wikiContext, content);
156     }
157 
158     protected LiferayJSPWikiEngine getEngine(long nodeId)
159         throws WikiException {
160 
161         LiferayJSPWikiEngine engine = _engines.get(nodeId);
162 
163         if (engine == null) {
164             Properties nodeProps = new Properties(_props);
165 
166             nodeProps.setProperty("nodeId", String.valueOf(nodeId));
167 
168             String appName = nodeProps.getProperty("jspwiki.applicationName");
169 
170             nodeProps.setProperty(
171                 "jspwiki.applicationName", appName + " for node " + nodeId);
172 
173             engine = new LiferayJSPWikiEngine(nodeProps);
174 
175             _engines.put(nodeId, engine);
176         }
177 
178         return engine;
179     }
180 
181     protected synchronized void setProperties(String configuration) {
182         _props = new Properties();
183 
184         InputStream is = new ByteArrayInputStream(configuration.getBytes());
185 
186         try {
187             _props.load(is);
188         }
189         catch (IOException ioe) {
190             _log.error(ioe, ioe);
191         }
192     }
193 
194     private static Log _log = LogFactoryUtil.getLog(JSPWikiEngine.class);
195 
196     private Properties _props;
197     private Map<Long, LiferayJSPWikiEngine> _engines =
198         new HashMap<Long, LiferayJSPWikiEngine>();
199 
200 }